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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5889) Improve user-limit calculation in capacity scheduler
Date Mon, 09 Jan 2017 18:20:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-5889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15812451#comment-15812451
] 

Wangda Tan commented on YARN-5889:
----------------------------------

bq. Let's please do these as separate JIRAs. We are extremely anxious to move this JIRA forward
since it is blocking YARN-2113 (user limit-based intra-queue preemption).
I understand, however I prefer to do the refactoring together with the patch, If we don't
actively do refactoring to make a clean code structure with major behavior changes, it will
cause a lot of trouble to maintain the code and add new functionalities. I'm OK with moving
other changes like partition-related changes to a separate JIRA if it needs considerable effort.


> Improve user-limit calculation in capacity scheduler
> ----------------------------------------------------
>
>                 Key: YARN-5889
>                 URL: https://issues.apache.org/jira/browse/YARN-5889
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler
>            Reporter: Sunil G
>            Assignee: Sunil G
>         Attachments: YARN-5889.0001.patch, YARN-5889.0001.suggested.patchnotes, YARN-5889.v0.patch,
YARN-5889.v1.patch, YARN-5889.v2.patch
>
>
> Currently user-limit is computed during every heartbeat allocation cycle with a write
lock. To improve performance, this tickets is focussing on moving user-limit calculation out
of heartbeat allocation flow.



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